SIMATIC WinCC is a supervisory control and data acquisition (SCADA) and human-machine interface (HMI) system from Siemens. SCADA systems are used to monitor and control physical processes involved in industry and infrastructure on a large scale and over long distances. SIMATIC WinCC can be used in combination with Siemens PCS 7 and Teleperm control systems. WinCC is written for the Microsoft Windows operating system. It uses Microsoft SQL Server for logging and comes with a VBScript and ANSI C application programming interface.
WinCC and PCS 7 are the first SCADA systems to be specifically targeted by malware. The Stuxnet worm can spy on and even reprogram infected systems.
WinCC' WinCC scada page Introduction to WinCC Flexible